Festuca quadridentata Kunth (1816: 154) .

Lectotype (first-step designated as “typus” by Alexeev 1986: 12):— ECUADOR. Guamote, [without date] A. J. A. Bonpland & F. W. H. A Humboldt 3221 (P, two sheets: P 00669427, P 00625328 images!): second-step designated here:— ECUADOR. Guamote, [without date], A. J. A. Bonpland & F. W. H. A Humboldt 3221 (P 00669427 image!; isolectotypes (B-W 02072010 image!, B 100002572 image!, BAA 00002067 [fragment] image!, BAA 00002068 [fragment] image!, P 00625328 image!, US 01231924 [fragment?] image!). Image of second-step lectotype available at: https://science.mnhn.fr/institution/mnhn/collection/p/item/p00669427?listIndex=1&li stCount=3&lang=en_ US.